8) Find the cross product a x b and verify that it is orthogonal to both a and b. a = (1, 1, -1),   b = (2, 4, 6)

Elementary Linear Algebra (MindTap Course List)
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Chapter6: Linear Transformations
Section6.CR: Review Exercises
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8) Find the cross product a x b and verify that it is orthogonal to both a and b.

a = (1, 1, -1),   b = (2, 4, 6)

7-13 Find the cross product a X b and verify that it is orthogonal
to both a and b.
7. а — (6, 0, —2), Ь %3D (0, 8, 0)
8. а — (1, 1, —1), b %3D (2,4, 6)
9. a = i + 3j – 2k, b = -i + 5k
10. а
j + 7k, b = 2i – j + 4k
11. a = i - j - k, b =i + j + ¿k
2
12. a = i+ e'j +e¯'k, b= 2i + e'j – e¯'k
13. а — (1, 1?, 13), Ь %3D (1, 21, 31?)
b = (1, 21, 3r?)
Transcribed Image Text:7-13 Find the cross product a X b and verify that it is orthogonal to both a and b. 7. а — (6, 0, —2), Ь %3D (0, 8, 0) 8. а — (1, 1, —1), b %3D (2,4, 6) 9. a = i + 3j – 2k, b = -i + 5k 10. а j + 7k, b = 2i – j + 4k 11. a = i - j - k, b =i + j + ¿k 2 12. a = i+ e'j +e¯'k, b= 2i + e'j – e¯'k 13. а — (1, 1?, 13), Ь %3D (1, 21, 31?) b = (1, 21, 3r?)
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